RT Journal Article SR Electronic T1 Endothelin-1 and interleukin-8 in high altitude pulmonary oedema JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1947 OP 1949 DO 10.1183/09031936.96.09091947 VO 9 IS 9 A1 Y Droma A1 T Hayano A1 Y Takabayashi A1 T Koizumi A1 K Kubo A1 T Kobayashi A1 M Sekiguchi YR 1996 UL http://erj.ersjournals.com/content/9/9/1947.abstract AB We present a case of high altitude pulmonary oedema (HAPE) with pulmonary hypertension and polymorphonuclear leucocyte (PMN) accumulation in bronchoalveolar lavage fluid (BALF), which occurred in a 21 year old man. Plasma endothelin-1 (ET-1) and interleukin-8 (IL-8) concentration in BALF were elevated on admission, and returned to normal level at recovery, when the pulmonary artery pressure and the PMN counts in BALF were normal. In addition, E-selectin and intercellular adhesion molecule-1 (ICAM-1) in BALF were also slightly increased on admission. These findings suggest that endothelin-1 is a vasoconstrictor which contributes to the pulmonary hypertension in high altitude pulmonary oedema, and that some of the inflammatory mediators play an important role in chemotaxis and accumulation of polymorphonuclear leucocytes in the development of high altitude pulmonary oedema.